bug5 is a Big5/GBK <-> UTF-8 translating layer in terminal.
It's modified from script(1).

Features that screen doesn't have:
- Autoset locale
- UAO
- Unpad padded ambiguous-width characters
- ANSI-Broken Big5 (eg. Double Color) fixing
- Optional Traditional-Simplified conversion
- BSD License
- Specifying size for slave terminal + auto scrolling region setting

Features that both bug5 and screen has:
- Optional ambiguous-width characters padding
- Specify I/O conversion

WWW: https://github.com/buganini/bug5